Four-wheeled trolley



FIG. 1 is a perspective view showing the trolley;

FIG. 2 is a front view showing the trolley;

FIG. 3 is a back view showing the trolley;

FIG. 4 is a left-side view showing the trolley;

FIG. 5 is a right-side view showing the trolley;

FIG. 6 is a top view showing the trolley; and,

FIG. 7 is an end view showing the trolley.

The broken line showing is included for the purpose of illustrating environment and forms no part of the claimed design. 

CLAIM The ornamental design for a four-wheeled trolley, as shown and described. 